High-power-density alternating-current strong current generator

The invention discloses a high-power-density alternating-current strong current generator. According to the generator, a power electronic technology is provided for being used for achieving high-current adjustable output, power density and the power factor can be greatly improved, automatic high-precision adjustment can be achieved, carrying and use are convenient, the service life is prolonged, and reliability is improved. A three-level structure is adopted, a Boost PFC is arranged on the first level, an LLC is arranged on the second level, and an interleaving full-bridge inverter is arranged on the third level. The first level is mature in technology. The second level is high in input voltage, low in output voltage and high in current, and the structure that the primary sides of multiple transformers are connected in series, and secondary sides are connected in parallel is adopted. The third level belongs to low-voltage input and lower-voltage high-current output, output current waveform quality is guaranteed through a carrier staggering method, and the conversion efficiency of the convertor on this level is improved.